322233661 has 2 divisors, whose sum is σ = 322233662. Its totient is φ = 322233660.

The previous prime is 322233643. The next prime is 322233677. The reversal of 322233661 is 166332223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205377561 + 116856100 = 14331^2 + 10810^2 .

It is a cyclic number.

It is not a de Polignac number, because 322233661 - 2¹⁹ = 321709373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (322233601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161116830 + 161116831.

It is an arithmetic number, because the mean of its divisors is an integer number (161116831).

Almost surely, 2^322233661 is an apocalyptic number.

It is an amenable number.

322233661 is a deficient number, since it is larger than the sum of its proper divisors (1).

322233661 is an equidigital number, since it uses as much as digits as its factorization.

322233661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 28.

The square root of 322233661 is about 17950.8679734435. The cubic root of 322233661 is about 685.5781511393.

Adding to 322233661 its reverse (166332223), we get a palindrome (488565884).

The spelling of 322233661 in words is "three hundred twenty-two million, two hundred thirty-three thousand, six hundred sixty-one".